单选题:How much effort is typically expended by a software organization
How much effort is typically expended by a software organization on software maintenance? @[C](1)
A. 20 percent
B. 40 percent
C. 60 percent
D. 80 percent
A.20 percent
B.40 percent
C.60 percent
D.80 percent
答案:C
A. 20 percent
B. 40 percent
C. 60 percent
D. 80 percent
A.20 percent
B.40 percent
C.60 percent
D.80 percent
答案:C